Letter | Published:

Oogenesis in the Indian Earthworm

Nature volume 130, page 403 (10 September 1932) | Download Citation

Subjects

Abstract

RECENTLY my attention was directed to a paper by Vishwa Nath 1 on the shape of the Golgi apparatus in the eggs of the Indian earthworm, Pheretima posthuma. Unfortunately, Nath has apparently not seen my paper2 on the same animal (Pheretima posthuma), in which I discussed the shape, origin, and structure of Golgi elements and mitochondria as observed in the oogenesis of this animal. Tests with osmic acid on fresh ovary or the usual fixed preparations failed to reveal the presence of either neutral fat or yolk; although in certain preparations swollen bodies resembling fat were found which were later on revealed as artefacts. The Golgi elements were of the usual spherical type with a definite osmiophilic thick rim and a clear transparent core inside. Prolonged osmication made the vesicle blacker. The mitochondria were granular and not filamentar. It is obvious, therefore, that Dr. Nath has completely confirmed my original findings.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    , "Studies on the Shape of the Golgi Apparatus: (11) Observations on the Fresh Egg of the Indian Earthworm, Pheretima posthuma", Quart. J. Micr. Sci., 73, 477; 1930.

  2. 2.

    , "Cytoplasmic Inclusions in the Oogenesis of Pheretima Posthuma", Alld. Univ. Stud., 4, 177; 1928.

Download references

Author information

Affiliations

  1. Rothamsted Experiment Station, Harpenden, Herts, Aug. 18.

    • U. S. SHARGA

Authors

  1. Search for U. S. SHARGA in:

About this article

Publication history

Published

DOI

https://doi.org/10.1038/130403c0

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.